MEGA
Energy in Biology
Cellular respiration is a chemical process in which the bonds between atoms of food molecules and oxygen molecul…
Item EB024002: The reaction glucose + oxygen carbon dioxide + water provides organisms with energy for life processes.
Word equations can be used to represent chemical reactions. In a word equation, the substances on the left side of the arrow are the reactants, and the substances on the right side are the products. The arrow represents “react to form.”
Reactants → Products
Which of the following word equations describes the reaction that organisms use to provide energy for life’s processes (cellular respiration)?
- Glucose + Oxygen → Carbon Dioxide
- Glucose + Water → Oxygen + Carbon
- Glucose + Water → Carbon Dioxide + Oxygen
- Glucose + Oxygen → Carbon Dioxide + Water
Pre-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 271 |
6–8 n = 0 |
9–12 n = 242 |
Male n = 134 |
Female n = 107 |
English n = 225 |
Other n = 12 |
||
| A. | Glucose + Oxygen → Carbon Dioxide | 22% | NAN% | 23% | 27% | 18% | 22% | 33% |
| B. | Glucose + Water → Oxygen + Carbon | 21% | NAN% | 20% | 18% | 22% | 20% | 25% |
| C. | Glucose + Water → Carbon Dioxide + Oxygen | 29% | NAN% | 29% | 25% | 36% | 29% | 25% |
| D. | Glucose + Oxygen → Carbon Dioxide + Water | 28% | NAN% | 28% | 31% | 24% | 29% | 17% |
Post-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 307 |
6–8 n = 0 |
9–12 n = 285 |
Male n = 167 |
Female n = 109 |
English n = 258 |
Other n = 21 |
||
| A. | Glucose + Oxygen → Carbon Dioxide | 14% | NAN% | 14% | 16% | 12% | 14% | 14% |
| B. | Glucose + Water → Oxygen + Carbon | 11% | NAN% | 11% | 10% | 10% | 11% | 10% |
| C. | Glucose + Water → Carbon Dioxide + Oxygen | 20% | NAN% | 19% | 22% | 16% | 19% | 14% |
| D. | Glucose + Oxygen → Carbon Dioxide + Water | 55% | NAN% | 56% | 53% | 62% | 55% | 62% |